/// <summary>
/// Stores the context info.
/// </summary>
/// <returns>The context info.</returns>
/// <param name="contextInfoNode">Context info node.</param>
/// <param name="location">Location.</param>
public int StoreContextInfo(ContextInfoNode contextInfoNode, ContextInfoLocation location)
{
ContextNode contextNode;
switch (location)
{
case ContextInfoLocation.Bottom:
contextNode = _stack.Tail;
break;
case ContextInfoLocation.Top:
contextNode = _stack.Head;
break;
case ContextInfoLocation.Prop:
if ((contextNode = FindPropContext()) != null)
{
break;
}
return((int)ParserStatus.NoScope);
default:
return((int)ParserStatus.BadLocation);
}
AttachContextInfo(contextNode, contextInfoNode);
return(0);
}
/// <summary>
/// Install a handler node into the current context
/// </summary>
/// <returns></returns>
private int InstallHandler(uint type, uint id, uint identifier, ContextInfoLocation position, IFFCallBack callbackHandler, object data)
{
int err;
var ci = new ContextInfoNode(id, type, identifier, 0, null);
if (ci != null)
{
var ch = new ChunkHandler {
ChunkHandlerCallBack = callbackHandler,
UserData = data
};
ci.ChunkHandler = ch;
err = StoreContextInfo(ci, position);
if (err < 0)
{
ci.Dispose();
}
return(err);
}
return(0);
}
/// <summary>
/// Installs the exit handler.
/// </summary>
/// <returns>The exit handler.</returns>
/// <param name="type">Type.</param>
/// <param name="id">Identifier.</param>
/// <param name="position">Position.</param>
/// <param name="cb">Callback</param>
/// <param name="data">Data.</param>
public int InstallExitHandler(uint type, uint id, ContextInfoLocation position, IFFCallBack cb, object data)
{
return(InstallHandler(type, id, GenericChunkIds.CI_EXITHANDLER, position, cb, data));
}
